2 Problems since boxing in BfA

Hi,
i've been boxing in Legion, took a break and now came back to boxing in BfA.
I updated Inner Space and IsBoxer and started boxing with my old character sets and settings and all went fine.

But now i ran into 2 problems:

1.
I created a new character set with 4 existing characters and one i've never boxed before with.
The first toon in that set has a special character in his name: "ö"
This toon works in existing character sets but when i created a new one, i get the error message, that the character set was not found in the Inner Space console.
edit:
solved this one: Removed the "ö" in the name of the character set, now it works.

2.
I play with a left handed razer naga mouse.
I got myself another account and on this (and only on this) account, the mouse buttons (left and right) are inverted when i load the game with IsBoxer. When I load the game through the Blizzard Launcher, everything is ok.

Please help. :(